8. MANAGEMENT SUPPORT APPLICATION INTERFACES › 8.1 CA MICS Accounting and Chargeback Interface › 8.1.3 Network Accounting Considerations › 8.1.3.3 Redundant Information Issues

8.1.3.3 Redundant Information Issues

The CA MICS Accounting and Chargeback Option supports the
following CA MICS Network Analyzer Option files for
chargeback processing:

o  NCP Network Accounting (SNTNAC) File
o  CA NetSpy Terminal (SNTNSS) File
o  NPM User Activity (SNTPSU) File
o  NLDM Session Accounting (NVSNSA) File
o  NLDM Session Connectivity (NVSNSC) File
o  NLDM Response Time (NVSRTM) File


The NCP Network Accounting File is built from network session
accounting (NSA) and network gateway accounting (NGA) data
from either CA NetSpy or Tivoli NetView Performance Monitor
(NPM).  The NPM User Activity File is built from NPM Session
data.  The NLDM files are built using data from either Tivoli
NetView Session Monitor/NLDM or CA NetMaster Network Tracking
System (NTS).  The CA NetSpy Terminal File is built from CA
NetSpy's VTAM interface data.

Because there can be overlap between data from these sources,
the CA MICS Accounting and Chargeback Option prevents the use
of both NPM and NetView Session Monitor/NLDM files
concurrently for billing.  Should you require the ability to
implement chargeback using both NPM and NetView Session
Monitor/NLDM or both NPM and CA NetMaster sources, contact
Technical Support at http://ca.com/support.

CA NetSpy and NPM can collect NSA data on both the secondary
(SLU) and primary (PLU) side of a session.  To prevent
collection of redundant accounting data, collect NSA data on
the secondary side of a session only.  If your site collects
NSA data on both the primary and secondary sides of a
session, CA MICS data element NACCOLPT, NCP Collection Point
(Primary or Secondary), can help you detect and eliminate
redundant NSA data.

Similarly, CA NetSpy and NPM can collect redundant NGA data
for sessions that traverse multiple gateway NCPs.  To aid in
the detection and elimination of this redundant data, collect
all NGA data at a single CA NetSpy or NPM collection host. CA
NetSpy automatically discards redundant NGA data.  It only
accepts NGA data for a given session from the first gateway
NCP to send it for that session.  NPM provides a user exit
for detecting and discarding redundant NGA data.  See the
Tivoli NPM documentation.  CA MICS data elements NACANPLU
(Adjacent Network ID SLU Side), NACANSLU (Adjacent Network ID
PLU Side), and USESSIDC (Unique Session ID) can also be used
to detect and eliminate redundant NGA data.